Final answer:
Potlatch is associated with the Pacific Northwest region, where it was a socio-political ceremony that demonstrated the host's status and importance.
Step-by-step explanation:
The practice of potlatch is associated with the Pacific Northwest region. Potlatch was a socio-political ceremony that brought towns together to celebrate important events and demonstrate the host's status and importance. The Pacific Northwest region had a rich natural resource base, allowing for a high population and culturally diverse groups.